So now that the Quick View window has a "quick close" feature (where I can tap on any "white space" on the chart and close QV), I'm starting to tap on the chart for other windows expecting them to close.
For example, I was playing around with the ADS-B Instrument, which, when you tap on it, calls up the Connection Windows. I request a quick close feature on it, where I can tap anywhere on the chart and close the window.
There are probably other windows for which quick close would also be nice - but I can't think of them right now.